FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2916845483> ?p ?o ?g. }

• W2916845483 endingPage "2154" @default.
• W2916845483 startingPage "2143" @default.
• W2916845483 abstract "Abstract We have synthesized coumarin-thiophene hybrids using stepwise and one-pot methods under MWI and CM conditions, and then report the findings and conclusions: one-pot is better than stepwise in terms of high yields and fastness of getting products, and MWI is better than CM in terms of purity of compounds, better yields, and reaction period. Even though both protocols were found to be efficient, the microwave-assisted irradiation reactions were identified to be better, environmentally friendly, cost-effective, mild, more efficient, less time consuming but with high purity. The two protocols were employed for the synthesis of the target coumarin-thiophene hybrids via the Gewald reaction in stepwise and in one-pot three-component. The dyes 3a-j were prepared in good to excellent yields. Although, we recorded better yields via the stepwise protocol (80–96%), for the synthesis of the target molecules, as compared to the one-pot (82–90%), the stepwise condition is fraught with many changes such as long reaction conditions, extra use of solvents for purification of intermediates, and long reaction durations. Photophysical activities of all the target derivatives were investigated using a combination of UV–vis and fluorescence spectroscopies in different solvents. The umbelliferon-like derivative 3g was further investigated for possible use as a pH sensor via deprotonation (using TBAOH) and reverse protonation (using TFA), and was found to be applicable as pH sensor both in organic medium (DMSO) and partial aqueous binary (DMSO/H2O, v/v, 9:1) medium. Again, the ground and the excited state properties of the umbelliferon-like derivative 3g and its deprotonated form were also studied using the quantum chemical calculations. Finally, the thermal properties of all the target compounds were investigated using TGA in order to test their potency and applicability as optical dyes. All the dyes 3a-j have high thermal stability therefore they can be applicable as optical dyes." @default.
• W2916845483 created "2019-03-02" @default.
• W2916845483 creator A5027583196 @default.
• W2916845483 creator A5060753447 @default.
• W2916845483 creator A5065477577 @default.
• W2916845483 date "2019-04-01" @default.
• W2916845483 modified "2023-10-16" @default.
• W2916845483 title "Improved one-pot synthetic conditions for synthesis of functionalized fluorescent coumarin-thiophene hybrids: Syntheses, DFT studies, photophysical and thermal properties" @default.
• W2916845483 cites W1972825014 @default.
• W2916845483 cites W1973565571 @default.
• W2916845483 cites W1973719140 @default.
• W2916845483 cites W1979636514 @default.
• W2916845483 cites W1980276428 @default.
• W2916845483 cites W1995794402 @default.
• W2916845483 cites W1997151511 @default.
• W2916845483 cites W1997415546 @default.
• W2916845483 cites W2000155299 @default.
• W2916845483 cites W2001176566 @default.
• W2916845483 cites W2003450008 @default.
• W2916845483 cites W2004048367 @default.
• W2916845483 cites W2011469832 @default.
• W2916845483 cites W2011486209 @default.
• W2916845483 cites W2023271753 @default.
• W2916845483 cites W2030598909 @default.
• W2916845483 cites W2035264211 @default.
• W2916845483 cites W2038758039 @default.
• W2916845483 cites W2065649191 @default.
• W2916845483 cites W2068228867 @default.
• W2916845483 cites W2072080593 @default.
• W2916845483 cites W2073329563 @default.
• W2916845483 cites W2075244876 @default.
• W2916845483 cites W2081097218 @default.
• W2916845483 cites W2085375302 @default.
• W2916845483 cites W2087220219 @default.
• W2916845483 cites W2092601148 @default.
• W2916845483 cites W2093742668 @default.
• W2916845483 cites W2106679464 @default.
• W2916845483 cites W2133491053 @default.
• W2916845483 cites W2143981217 @default.
• W2916845483 cites W2150465569 @default.
• W2916845483 cites W2196385070 @default.
• W2916845483 cites W2463898046 @default.
• W2916845483 cites W2464809007 @default.
• W2916845483 cites W2516937864 @default.
• W2916845483 cites W2893142559 @default.
• W2916845483 cites W2896171656 @default.
• W2916845483 cites W2949698977 @default.
• W2916845483 cites W2952721660 @default.
• W2916845483 cites W2953334499 @default.
• W2916845483 cites W4211187039 @default.
• W2916845483 cites W4231431086 @default.
• W2916845483 doi "https://doi.org/10.1016/j.tet.2019.02.034" @default.
• W2916845483 hasPublicationYear "2019" @default.
• W2916845483 type Work @default.
• W2916845483 sameAs 2916845483 @default.
• W2916845483 citedByCount "21" @default.
• W2916845483 countsByYear W29168454832019 @default.
• W2916845483 countsByYear W29168454832020 @default.
• W2916845483 countsByYear W29168454832021 @default.
• W2916845483 countsByYear W29168454832022 @default.
• W2916845483 countsByYear W29168454832023 @default.
• W2916845483 crossrefType "journal-article" @default.
• W2916845483 hasAuthorship W2916845483A5027583196 @default.
• W2916845483 hasAuthorship W2916845483A5060753447 @default.
• W2916845483 hasAuthorship W2916845483A5065477577 @default.
• W2916845483 hasConcept C121332964 @default.
• W2916845483 hasConcept C153294291 @default.
• W2916845483 hasConcept C178790620 @default.
• W2916845483 hasConcept C185592680 @default.
• W2916845483 hasConcept C204530211 @default.
• W2916845483 hasConcept C21951064 @default.
• W2916845483 hasConcept C2779953032 @default.
• W2916845483 hasConcept C2781338262 @default.
• W2916845483 hasConcept C62520636 @default.
• W2916845483 hasConcept C75473681 @default.
• W2916845483 hasConcept C91881484 @default.
• W2916845483 hasConceptScore W2916845483C121332964 @default.
• W2916845483 hasConceptScore W2916845483C153294291 @default.
• W2916845483 hasConceptScore W2916845483C178790620 @default.
• W2916845483 hasConceptScore W2916845483C185592680 @default.
• W2916845483 hasConceptScore W2916845483C204530211 @default.
• W2916845483 hasConceptScore W2916845483C21951064 @default.
• W2916845483 hasConceptScore W2916845483C2779953032 @default.
• W2916845483 hasConceptScore W2916845483C2781338262 @default.
• W2916845483 hasConceptScore W2916845483C62520636 @default.
• W2916845483 hasConceptScore W2916845483C75473681 @default.
• W2916845483 hasConceptScore W2916845483C91881484 @default.
• W2916845483 hasFunder F4320322626 @default.
• W2916845483 hasIssue "14" @default.
• W2916845483 hasLocation W29168454831 @default.
• W2916845483 hasOpenAccess W2916845483 @default.
• W2916845483 hasPrimaryLocation W29168454831 @default.
• W2916845483 hasRelatedWork W1971249219 @default.
• W2916845483 hasRelatedWork W2007607198 @default.
• W2916845483 hasRelatedWork W2028908407 @default.
• W2916845483 hasRelatedWork W2030933074 @default.
• W2916845483 hasRelatedWork W2057125058 @default.
• W2916845483 hasRelatedWork W2126887981 @default.

• next